Stephen laughs when Jason says that bit about we were the enemy. It must be a laugh at how ridiculous the idea is. It must be. It certainly isn't an I can't believe you just said that seriously laugh.

"I'm sorry to hear that," Stephen says smoothly, keeping a light tone. "It's always difficult at the beginning. These Tributes need a different approach than the ones that came before. They're not frightened children, Jason."